The factors of 15 are 1, 3, 5, and 15.
Contents
What’s are the factors of 15?
There are four factors of 15, i.e, 1, 3, 5 and 15. Hence, the smallest factor is 1 and the greatest factor of 15 is 15, itself. The sum of all factors of 15 is equal to 24. Pair factors of 15 are the integers that give the original number 15 when multiplied together in pairs.
What two numbers make 15?
1 x 15 = 15. 3 x 5 = 15. 5 x 3 = 15.
What are multiples of 15?
The first 5 multiples of 15 are 15, 30, 45, 60 and 90.
How do you find the prime factorization of 15?
15 is a composite number. 15 = 1 x 15 or 3 x 5. Factors of 15: 1, 3, 5, 15. Prime factorization: 15 = 3 x 5.
What is the LCM of 12 and 15?
60
Answer: LCM of 12 and 15 is 60.
How do you find the factor of a number?
How to Find Factors of a Number?
- Find all the numbers less than or equal to the given number.
- Divide the given number by each of the numbers.
- The divisors that give the remainder to be 0 are the factors of the number.
What 3 numbers add up to 15?
6 and 9, 7 and 8. Three numbers are 3, 5 and 7. 3 + 5 = 8, and 8 +7 = 15.
How many combinations are there with 15 numbers?
If you are looking for the maximum combinations with repeats the number is 9 * 10^14 which = 900,000,000,000,000, but if looking for no repeats the answer is as follows. 15!/ (15- 10)! 10,897,286,400 but this is the maximum number of combinations that the digits do not repeat.
What are three groups 15?
Opposite of Multiplying
| Multiplication… | …Division |
|---|---|
| 3 groups of 5 make 15… | …so 15 divided by 3 is 5 |
| and also: | |
| 5 groups of 3 make 15… | …so 15 divided by 5 is 3. |
What is the composite of 15?
Definitions
| factors of 10: | 1 x 10, 2 x 5 | 10 is composite |
|---|---|---|
| factors of 13: | 1 x 13 | 13 is prime |
| factors of 14: | 1 x 14, 2 x 7 | 14 is composite |
| factors of 15: | 1 x 15, 3 x 5 | 15 is composite |
| factors of 16 | 1 x 16, 4 x 4 | 16 is composite |
Is 15 a multiple of each factor yes or no?
The terms factor and multiple are sometimes confused with each other. Factors of 15 include 3 and 5; multiples of 15 include 30, 45, 60 (and more). See more below and at multiple.
Is 15 a composite number?
The first few composite numbers (sometimes called “composites” for short) are 4, 6, 8, 9, 10, 12, 14, 15, 16,… Note that the number 1 is a special case which is considered to be neither composite nor prime.
What are 2 different ways of factoring 15?
“Factors” are the numbers you multiply to get another number. For instance, factors of 15 are 3 and 5, because 3×5 = 15. Some numbers have more than one factorization (more than one way of being factored). For instance, 12 can be factored as 1×12, 2×6, or 3×4.
How many different whole numbers are factors of 15?
There are four different whole number factors of 15. The factors are 1, 3, 5, and 15.
What is the LCM of 15?
The LCM of 15 and 20 is 60. To find the LCM (least common multiple) of 15 and 20, we need to find the multiples of 15 and 20 (multiples of 15 = 15, 30, 45, 60; multiples of 20 = 20, 40, 60, 80) and choose the smallest multiple that is exactly divisible by 15 and 20, i.e., 60.
What is the LCM of 15 and 25?
75
Answer: LCM of 15 and 25 is 75.
What is the GCF of 15 and 12?
3
Answer: GCF of 12 and 15 is 3.
What are the factors of 16?
Therefore, the factors of 16 are 1, 2, 4, 8, and 16 and the prime factorization of 16 is 16 = 2 × 2 × 2 × 2.
What is the HCF and LCM of 12 15 and 21?
we take all the factors present in three numbers and the highest power of the common factors respectively. Therefore, the required H.C.F. and L.C.M. of 12, 21 and 15 are 3, 420 respectively.
How do you solve for LCM?
One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.