To find all the divisors of the number 211,296:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 211,296:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
211,296 = 25 × 3 × 31 × 71
211,296 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (5 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 211,296
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2
3 × 3 =
24
prime factor =
31
composite factor = 2
5 =
32
composite factor = 2
4 × 3 =
48
composite factor = 2 × 31 =
62
prime factor =
71
composite factor = 3 × 31 =
93
composite factor = 2
5 × 3 =
96
composite factor = 2
2 × 31 =
124
composite factor = 2 × 71 =
142
composite factor = 2 × 3 × 31 =
186
composite factor = 3 × 71 =
213
composite factor = 2
3 × 31 =
248
composite factor = 2
2 × 71 =
284
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2 × 3 × 71 =
426
This list continues below...
... This list continues from above
composite factor = 2
4 × 31 =
496
composite factor = 2
3 × 71 =
568
composite factor = 2
3 × 3 × 31 =
744
composite factor = 2
2 × 3 × 71 =
852
composite factor = 2
5 × 31 =
992
composite factor = 2
4 × 71 =
1,136
composite factor = 2
4 × 3 × 31 =
1,488
composite factor = 2
3 × 3 × 71 =
1,704
composite factor = 31 × 71 =
2,201
composite factor = 2
5 × 71 =
2,272
composite factor = 2
5 × 3 × 31 =
2,976
composite factor = 2
4 × 3 × 71 =
3,408
composite factor = 2 × 31 × 71 =
4,402
composite factor = 3 × 31 × 71 =
6,603
composite factor = 2
5 × 3 × 71 =
6,816
composite factor = 2
2 × 31 × 71 =
8,804
composite factor = 2 × 3 × 31 × 71 =
13,206
composite factor = 2
3 × 31 × 71 =
17,608
composite factor = 2
2 × 3 × 31 × 71 =
26,412
composite factor = 2
4 × 31 × 71 =
35,216
composite factor = 2
3 × 3 × 31 × 71 =
52,824
composite factor = 2
5 × 31 × 71 =
70,432
composite factor = 2
4 × 3 × 31 × 71 =
105,648
composite factor = 2
5 × 3 × 31 × 71 =
211,296
48 factors (divisors)
What times what is 211,296?
What number multiplied by what number equals 211,296?
All the combinations of any two natural numbers whose product equals 211,296.
1 × 211,296 = 211,296
2 × 105,648 = 211,296
3 × 70,432 = 211,296
4 × 52,824 = 211,296
6 × 35,216 = 211,296
8 × 26,412 = 211,296
12 × 17,608 = 211,296
16 × 13,206 = 211,296
24 × 8,804 = 211,296
31 × 6,816 = 211,296
32 × 6,603 = 211,296
48 × 4,402 = 211,296
62 × 3,408 = 211,296
71 × 2,976 = 211,296
93 × 2,272 = 211,296
96 × 2,201 = 211,296
124 × 1,704 = 211,296
142 × 1,488 = 211,296
186 × 1,136 = 211,296
213 × 992 = 211,296
248 × 852 = 211,296
284 × 744 = 211,296
372 × 568 = 211,296
426 × 496 = 211,296
24 unique multiplications The final answer:
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