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.
The prime numbers between 15 and 30 are: 17, 19, 23 and 29
30 = 2 × 3 × 5 36 = 2 × 2 × 3 × 3
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.
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.
29 is a prime number. There are no prime numbers between 29 and 30.