77 7,11
11,7
77 7,11
1899 213 3 3 7
The factor pairs of 213 are 1 x 213 and 3 x 71.
231 3, 77 3, 7, 11
The only composite factor of 213 is 213.
77 = 7 x 11 101 is a prime number. 213 = 3 x 71
154 / \ 2 77 / \ 7 11 154 = 2x7x11
852 4 x 213 2 x 2 x 3 x 71
770= 10 x 77 ^ ^ 5 2 11 7
A factor tree breaks a number down into it's prime numbers.A prime number is a number that can only be divided by 1 and itself.For example: 3 is a prime number, because the only numbers that can be divided evenly into 3 are 1 and 3.Your number is 77. I can tell by looking at the number that it is divisible by 7 (note the double 7's in 77)77 / 7 = 11.This means that 7 * 11 = 77Your factor tree would look like:......77....../ \.....7*11Now we see if 7 and 11 can be broken down into smaller prime factors.Fortunately for us, 7 is already a prime number.And, as luck would have it, 11 is also a prime number.This completes the factor tree of 77.