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How many factor trees does 67 have?
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.
What is the greatest common factor of 20 and 77?
Factors of 77: 1, 7, 11, 77Factors of 20: 1, 2, 4, 5, 10, 20GCF (77, 20) = 1
What is the LCM of 77 and 20?
The only common factor between them is 1, so just multiply the numbers together: 77 x 20 = 1540
How do I prove that 77 and 27 are relatively prime?
You find their factors and compare them to see which ones are in common. The factors of 27 are 1, 3, 9 and 27. The factors of 77 are 1, 7, 11 and 77. The only common factor they have is 1. Therefore they are relatively prime.
What is the greatest common factor of 77 and 21?
The greatest common factor of 21 and 77 is 7.
