Mathematics
NULL
Medium
Question
The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is ________?
A
1267
✓ Official correct answer
B
1265
C
1261
D
68
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
1267
No member explanations yet for this option.
B
1265
No member explanations yet for this option.
C
1261
No member explanations yet for this option.
D
68
No member explanations yet for this option.
Explanation
n − 7 = LCM(21,28,36,45) = 1260. So n = 1267.