2 x 2 x 2 x 2 = 16
2 x 3 x 5 = 30
2 x 2 x 3 x 7 = 84
5 x 13 = 65
Prime factorizations are expressions of numbers as products of prime factors. The prime factorization of 30 is 2 x 3 x 5.
30 = 2 x 3 x 5
No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.
30, 33 and 36 have 3 in their prime factorizations.
30 = 2 × 3 × 5 36 = 2 × 2 × 3 × 3
The prime numbers between 15 and 30 are: 17, 19, 23 and 29
The least common multiple of 30 and 40 is found out by finding the prime factorizations of the 2 numbers 30 and 40, then to multiply the factors by the ones in unison and those not in unison. Therefore, the answer is 120120
The prime factorization for 30 is: 2 x 3 x 5The prime factorization for 135 is: 3 x 3 x 3 x 5
The factors of 30 that are not prime numbers are 6, 10 and 30.
Example: 30 and 42 List the factors. 1,2,3,5,6,10,15,30 1,2,3,6,7,14,21,42 Select the common factors. 1,2,3 and 6, the GCF.
The prime numbers between 30 and 40 are 31 and 37.The prime numbers between 30 and 40 are 31 and 37.
Many people use factor trees to help keep track. Example: 30 and 42 30 15,2 5,3,2 42 21,2 7,3,2 The prime factorizations of 30 and 42 are 2 x 3 x 5 and 2 x 3 x 7 respectively.