4, 9, 25, 49 4 has 1, 2, 4 9 has 1, 3, 9 25 has 1, 5, 25 49 has 1, 7, 49
GCF - Greatest Common Factor. The factors (integers that multiply to make) of 49 are 1 * 49, 7 * 7 Factors of 9 are 1 * 9, 3 * 3. Which factors do both numbers have in common? ... Just 1. This means the GCF of 49 & 9 is 1. IN fact, it's the ONLY common factor of 49 & 9, not just the greatest. Try this one on your own: GCF of 25 and 75. Hint: Factors of 25 -- 1, 25. 5, 5. Hint: Factors of 50 -- 1, 50. 2, 25. 5, 10. Which factors of 25 and 50 are in common? Of these common factors, which is the greatest? (GCF)
The LCD of 4/9 and 1/3 is 9. 4/9 - 3/9 = 1/9
So you're adding 3, 5, 7, 9, 11 etc 1, 4, 9, 16, 25, 36, 49
It's a sequence- 1x1=1, 2x2=4, 3x3=9, 4x4=16, 5x5=25, 6x6=36, 7x7=49,,,,,,,,,,, 1,4,9,16,25,36,49,,,,,,,,,,,
The lowest common denominator of 9, 25, and 49 is 11025.
25, 36, 49
4, 9, 25, 49 4 has 1, 2, 4 9 has 1, 3, 9 25 has 1, 5, 25 49 has 1, 7, 49
79 49 + 25 = 74 74 - 4 = 70 70 + 9 = 79
49/25= 4.36
GCF - Greatest Common Factor. The factors (integers that multiply to make) of 49 are 1 * 49, 7 * 7 Factors of 9 are 1 * 9, 3 * 3. Which factors do both numbers have in common? ... Just 1. This means the GCF of 49 & 9 is 1. IN fact, it's the ONLY common factor of 49 & 9, not just the greatest. Try this one on your own: GCF of 25 and 75. Hint: Factors of 25 -- 1, 25. 5, 5. Hint: Factors of 50 -- 1, 50. 2, 25. 5, 10. Which factors of 25 and 50 are in common? Of these common factors, which is the greatest? (GCF)
The factors of 3 are 1 and 3.
4, 9, 25 and 49
The Least Common multiple of 9, 19 and 49 is 8379.
The median is the middle of the list (when sorted). In this case 16. The sorted list is:1, 4, 9, 16, 25, 36, 49.
Prime squares: 4, 9, 25, 49
They are all perfect square numbers.