2 x 3 x 3 = 18
2 x 3 x 5 = 30
2 x 3 x 3 x 5 = 90, the GCF
2 x 2 x 3 x 3 x 5 = 180
2 x 3 x 3 x 3 x 5 = 270
Since 72 is a factor of 144, its entire prime factorization will be contained in the prime factorization of 144.
That's the prime factorization.
170 because 17 is prime
Prime factorization of 288 = 2x2x2x2x2x3x3Prime factorization of 40 = 2x2x2x5Prime factorization of 24 = 2x2x2x32x2x2 = 8, the GCF
Since 36 is a factor of 72, it will have everything in common with it.
you multiply them together
Prime factorization tells you what prime numbers multiply to get the number. You can see which numbers that number is divisible by to get the multiples and factors.
To find the common multiples of 16 and 30, first find the LCM: The prime factorization of 16 is 2*2*2*2 The prime factorization of 30 is 2*3*5 So the LCM is 16*30 / 2 = 240. All of the common multiples of 16 and 30 will be multiples of 240, so they are 240, 480, 720, 960, 1200, etc. There is an infinite number of common multiples for 16 and 30. A common multiple of any two numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).
The prime factorization of 665 is 5 x 7 x 19. For it to be common, it needs to be compared to another prime factorization.
All even numbers are multiples of 2, so they have 2 in their prime factorization. No odd numbers are divisible by 2, so no add number has 2 in its prime factorization.
3 x 3.
To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.
Since 72 is a factor of 144, its whole prime factorization will be contained in the prime factorization of 144.
Since 72 is a factor of 144, its entire prime factorization will be contained in the prime factorization of 144.
Prime factorization of 32 = 2x2x2x2x2 Prime factorization of 90 = 2x3x3x5 Prime factorization of 30 = 2x3x5 What is common in the prime factorization of the numbers? Only 2 is common, so GCF is 2.
That's the prime factorization.
2 and 5 are the prime factors that are common to all multiples of 10.