76= 2•2•19
76 is an even number so it is divisible by 2, so 2 is the first prime factor.76/2 = 38, and 38 is an even number divisible by 2, so 2is the next prime factor.38/2 = 19, and 19 is a prime number, so 19 is the next prime factor.The prime factorization of 76 is 2 x 2 x 19.
2 x 2 x 19 = 76
2*2*19 = 76
76 7 82 199 02 and 5
76 38,2 19,2,2
76 38,2 19,2,2 2 x 2 x 19 = 76
76= 2•2•19
76 = 2 * 2 * 19
The prime factor of 19 = 19. The prime factors of 76 = 2 x 2 x 19 They have the prime factor 19 in common, so 19 is the GCF of 19 and 76.
76{ }2 38{ }2 19
You need at least two numbers to find a GCF.
38,2 19,2,2
It is 2, 2 and 19
76 = 2 x 2 x 19
2 x 2 x 19 = 76
(304) = 2 * (152) = 2 * (76) = 2 * (38) = 2 * 19so prime factors of 304 are 2,2,2,2 and 19