The factors of 21 are: 1, 3, 7, 21 The factors of 51 are: 1, 3, 17, 51
17 is a prime number. It is only evenly divisible by itself and one.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
They are 1 and 17 because 17 is a prime number which has only two factors
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The factors of 21 are: 1, 3, 7, 21 The factors of 23 are: 1, 23
1, 17 1, 3, 7, 21
The factors of 21 are: 1, 3, 7, 21 The factors of 51 are: 1, 3, 17, 51
The gcf is 1. 17 is prime, so its only factors are 1 and 17. 21 has more factors, 1, 3, 7, and 21. The greatest common factor is 1.
2 and 17
17
The GCF is 1.
For 21: 3,7 For 51: 3,17
Prime factors: 3, 7, 17 Others are combinations of the primes, i.e. 2 x 7 = 21 3 x 17 = 51 7 x 17 = 119
The factors of 357 are: 1, 3, 7, 17, 21, 51, 119, 357.
The GCF of 17 and 21 is 1Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 17 are 1 and 17.The factors of 21 are 1, 3, 7, and 21.The only common factor is 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime.1 because 17 is a prime number
1, 3, 7, 17, 21, 51, 119, 357.
17 is a prime number. It is only evenly divisible by itself and one.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.